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ACI-ASTM CG8M Steel vs. EN 1.4828 Stainless Steel

Both ACI-ASTM CG8M steel and EN 1.4828 stainless steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG8M steel and the bottom bar is EN 1.4828 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
33
Fatigue Strength, MPa 280
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 550
650
Tensile Strength: Yield (Proof), MPa 300
260

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1020
1000
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.1
3.4
Embodied Energy, MJ/kg 56
48
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 31
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
170
Resilience: Unit (Modulus of Resilience), kJ/m3 220
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 12
14

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.2
Chromium (Cr), % 18 to 21
19 to 21
Iron (Fe), % 58.8 to 70
61.1 to 68.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 9.0 to 13
11 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
1.5 to 2.5
Sulfur (S), % 0 to 0.040
0 to 0.015